The FR100CM2 from Micro Harmonics is an Isolator that operates from 75 to 110 GHz. It can handle an input power of up to 1 W, provides an isolation of over 19 dB, and has an insertion loss of less than 0.9 dB. The isolator has a VSWR of less than 1.4:1. It is available in a module with a WR-10 flange interface.